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riscv: very large dma mappings can cause integer overflow

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Fix the return type for _bus_dmamap_addseg().
Based on the same fix done for arm64 in r348571.

Sponsored by:	Axiado
This commit is contained in:
Kristof Provost 2020-09-02 11:33:31 +00:00
parent e7b2173d0b
commit 3bebdc0564
1 changed files with 1 additions and 1 deletions
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2
sys/riscv/riscv/busdma_bounce.c
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@ -633,7 +633,7 @@ _bus_dmamap_reserve_pages(bus_dma_tag_t dmat, bus_dmamap_t map, int flags)
/* /*
* Add a single contiguous physical range to the segment list. * Add a single contiguous physical range to the segment list.
*/ */
static int static bus_size_t
_bus_dmamap_addseg(bus_dma_tag_t dmat, bus_dmamap_t map, bus_addr_t curaddr, _bus_dmamap_addseg(bus_dma_tag_t dmat, bus_dmamap_t map, bus_addr_t curaddr,
bus_size_t sgsize, bus_dma_segment_t *segs, int *segp) bus_size_t sgsize, bus_dma_segment_t *segs, int *segp)
{ {